Hoisting apparatus.



'P. FISCHER, JR. HOISTING APPARATUS.

APPLIOATIOH FILED AUG. 24, 1 910.

Patented Mar. 21,1911.

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I HOISTING APPARATUS. APPLICATION FILED AUG. 24, 1910.

987,455., Patented Mar.21,1911.

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FRITZ FISCHER, JR., 0]? SAN ANTONIO, TEXAS.

I-IOISTING APPARATUS.

To all whom it may concern:

Be it known that I, FRITZ FISCHER, Jr., a citizen of the United States,residing at San Antonio, in the county of Bexar and State of Texas, haveinvented certain new and useful Improvements in Hoisting Apparatus, ofwhich the following is a specification.

This invention relates to hoisting machines and pertains especially to arevoluble apparatus having a derrick or hoisting beam pivoted forswinging over a hoisting drum, and special means for operating theparts.

The object of this invention is to provide in a hoisting machine, a drumframe mounted on a revoluble gear wheel a crane or hoisting derrickpivoted and swingable over such frame, novel and peculiar means forcontrolling the movement of the crane or derrick, and special means foroperating said wheel.

A further object of the invention is to provide in a revolublecrane-derrick certain novel and peculiar construction and arrangement ofthe various parts as will eX- pedite its being assembled anddisassembled, and to furnish means for advantageously operating andcontrolling the movable parts of the machine.

A still further object of the invention is to provide in one and thesame apparatus or machine, means for hoisting and revolving an object orbody, means for raising and lowering without revolving, means forhauling and stretching without revolving the hoisting devices, andcertain means for erecting or setting poles and posts independent of theother of said means, but all of such various means or devices beingembodied in one and the same apparatus.

In this class of machines it is of great advantage to have them adaptedto be anchored at various places and in various positions relative tothe object or articles to be handled by such machines, and I haveprovided a machine conveniently adaptable for such purposes. And I alsoprovide for the swinging of the crane-member from one side to the otherof a frame during the circular movement of such frame to which saidmember is pivoted, without interfering with the hoisting mechanism orwith the mechanism for revolving and swinging the said member.

In the accompanying drawings forming part of this application :Figure 1is a side Specification of Letters Patent.

Application. filed August 24, 1910.

Patented Mar. 21, 1911.

Serial No. 578,781.

elevation showing the various positions of the derrick-member in dottedlines. Fig. 2 is a similar view showing the machine reversed. Fig. 3 isan end View with the derrick, chain and ropes removed. Fig. A is asection on the line ww Fig. 3. Fig. 5 is side elevation showing theapplication of the mvention in setting a pole. Fig. 6 is a perspectiveview of the gear wheel for mounting the frame. Fig. 7 is a sectionalview of the shifting bar and its pinion. Fig. 8 is a detail perspectiveview showing the pole carrier.

The same reference numerals denote the same parts throughout the severalviews of the drawings.

While the various applications of the ma-- chine is not shown herein, itis adaptable for various uses, such as raising and setting flag or otherpoles, pulling and removing fence or other posts, setting or removingpiles, and stretching fence wire. These operations are accomplishedwithout the use of the revolving mechanism by simply removing the framefrom the gear wheel and anchoring the frame in proper position.

To a suitable support or base 1, is secured a ball-bearing ring 2, bymeans of peripheral ring projections or keepers 1 The ball-bearings 1support a revoluble gear wheel 3, and the periphery of such wheel isover-lapped by the projections 1. The upper face of the wheel isprovided with two pairs of lugs 41:, to which the legs 5, of an uprightframe 6, are bolted. The gear 1 is revolved by means of a pinion 7, hungin :mesh with the wheel by a hanger 8, in which the pinion arbor orshaft 9 is journaled, and is provided with a hand crank 10, foroperating the pinion. The keepers 1 overlap the edge of the wheel 1, andare engaged by a rim l of the wheel 8 during the revolution of the wheelso as to keep the wheel in mesh with the pinion 7, without providing acentral arbor or shaft for the wheel. It is obvious that the frame maybe readily removed from the wheel 1, by simply re-- interference.

meshes with a pinion 15, on a driving shaft 16, which has a hand crank17, and a balance wheel '16. This mechanism is operated by said crank17, for raising and lowering the crane, or for swinging the crane. onits pivot. The said mechanism may also be operated for similar purposesby means of a pawl and ratchet lever 18, loosely mounted on a shaft 19,to which is secured a gear 20, having a ratchet wheel 21 on itsinnerface. Said lever carries a spring controlled pawl 22 for theratchet 21, and is controlled in its vertical movementby a spiral spring23, and in its lateral movement by. a spring 24- coiled about the shaft19. A pinion 25, is loosely mounted to slide and revolve on a rod 26,having its ends working through the frame 6, and Said pinion 25 mesheswith the gear 1 1 and with the gear 20; these two gears are coupled anduncoupled by the sliding movement of the pinion 25, which isaccomplished by means of a bar 27, one end of which works through oneside of the frame 6, and the other end is provided with an ear 26 inwhich a boss 27 of the pinion 25 is revolubly secured, and a spring 28on the rod 26. A link or hook 28 extends from the shaft 16 to the bar 27and forms a guide for the latter in its horizontal movement. By slidingthe bar outwardly its ear carries the pinion out of mesh with the gears1a and 20, and the bar is held in this position by a spring controlledkeeper 18 IVith the gearing in this position, the'chain drum 11 isoperated only through the shafts 11, and 16, by turning the hand crank17, but when it is desired to operate the said drum by the ratchet-lever18, the bar 27 is released and the spring 28 forces the pinion 25 tomesh with the gears 14 and 20. Such hand operation is desirable forshort adjustments of the crane.

The derrick or crane 13 is composed of two members 29 and 30, whichdiverge from their central joining bolt 29 to the sides of the frame 6,where they are pivoted to said frame at 30, whereby an opening or spaceis formed between said members so that the crane may be swung on itspivots over the frame 6 and its mechanism without The outer end of thecrane members carry a yoke 31, having trunnions 32 working in said ends,and said yoke has a loop 33, for holding one end of a pole or log 31during the raising or lowering of the crane as shown in Fig. 5. The yokeis provided with an eye 34: for attaching the crane chain 32, and asshown in Fig. 5, the frame is anchored by guy chains 33 In order toraise or lower an object or load after the crane has been fixed oradjusted in a desired position, a block and tackle 35, is hooked to theyoke-eye 3 1, and its rope 36 works over a guide sheave 37,

(Fig. 5) and over a loose sheave 38 on the shaft 11, to a Windlass 39,on a shaft 40, journaled in the lower part of the frame 6, and having ahand crank 41, a pinion 40, meshing with the gear 20, and a ratchetwheel 42 controlled by a pawl 13. .Asshown in Fig. 5, the pole is heldin an upright position by the crane so as to be moved vertically by theblock and tackle. Piles, fence posts and the like may be placed andremoved by removing the crane from the frame 6 and attaching the chain32 to such post, and the frame, its chain and drum may be used with orwithout the pawl andratchet mechanism for hauling or pulling, and forstretching wire fencing.

It will be seen that the frame 6, with the crane may be revolved before,after and during the raising or lowering of the crane, and

that the block and tackle may be operated at the same time orindependent of the circular and swinging movements of the crane. It isobvious that the various parts of the apparatus may be assembled anddisassembled in part or in whole in a most expeditious manner, and thatthe apparatus may be arranged for work of various character within thecapacity of the apparatus.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is 1. The combination, with a hoisting machine,and supporting base; of means for revolving the machine on said base,comprising a .gear wheel having a rim to which the frame of the machineis attached, a plurality of keepers attached to the base and engagingthe rim for centralizing the wheel, and a pinion for revolving the wheelunder the keepers.

2. The combination, with a hoisting machine, of a plurality of parallelshafts, a gear on each shaft, a drum on each of two of said shafts, andmeans for transmitting motion from one to the other of the drumshaftscomprising a rod, a spring controlled bar slidable on the rod, and apinion mounted on the bar and adapted to be slid into and out of meshwith the drum-shaft gears.

3. In a hoisting apparatus, the combination, with a frame, a cranepivoted to the frame, and swingable over it, and a gear wheel upon whichthe frame is mounted for revolving the frame and the crane, of two setsof gearing having shafts journaled in the frame for swinging the crane,and means for coupling and uncoupling the sets of gearing comprising aspring controlled bar, and a pinion carried by the bar which slides thepinion in and out of gear.

4. In a hoisting apparatus, the combination, with a frame, and a cranepivoted to the frame, of a yoke carried by the free end of the crane,'apole carrying loop projecting from the yoke, a block and tackle at-.tached to the yoke, a chain operating drum for the crane, a Windlassfor operating the tackle rope independent of the drum movement, meansfor operating drum, and means for operating the Windlass.

5. In an apparatus for the purposes described, the combination, with aframe, a chain operating drum, a driven shaft journaled in the frame andhaving the drum mounted thereon, a gear on the said shaft, :1 drivingshaft journaled in the frame, a pinion on the driving shaft meshing withsaid gear wheel, a ratchet shaft journaled in the frame, and a ratchetdevice carried by the ratchet shaft, of a rod interposed between thesaid driven shaft and the ratchet shaft, a pinion slidable on the rod, abar having an ear in which this pinion is journaled for sliding thepinion out of mesh with the driving shaft gear and with the ratchetgear, and a spring upon the said rod for sliding this pinion into meshwith these gears.

6. The combination, with a derrick frame, of means for revolving it,comprising a gear having said frame mounted thereon, a ballbearing ringupon which the gear is revolved, and having projecting flanges whichover-lap the periphery of the gear, and a hand operated pinion meshingwith said gear for revolving it.

7. The combination, with a frame, a crane pivoted to the frame, andmeans carried by the frame for raising and lowering the crane, of a yokehaving trunnions working in the free end of the crane, and a poleholding loop projecting from the yoke.

In witness whereof I hereunto set my hand in the presence of twowitnesses.

FRITZ FISCHER, JR.

Witnesses: 7

AD. REAL, E. ODEWILE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

